Unsolved charconv file not found

[Izza]

Hello
I am working on qt 5.12.2 for web assembly
its windows 10 bash
emcc doesnt seem to support charconv
it says file not found.

[SGaist]

Hi,

What configure options did you found in this ?

[Izza]

Ok
I have a confusion regarding charconv that whether or not is being fully supported by clang,llvm + emcc
in short , in web assembly.

Secondly here are my configurations if you are talking about makefile:

CC = emcc
CXX = em++
DEFINES = -DQT_DEPRECATED_WARNINGS -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB
CFLAGS = -pipe -O3 -Wall -W $(DEFINES)
CXXFLAGS = -pipe -O3 -std=c++17

This guy also spoke about something regarding limitaions we have on clang :
https://www.bfilipek.com/2018/12/fromchars.html

Moreover , i am using emsdk 1.38.16
Note: I am sorry if i have provided les details. you can ask more.

[SGaist]

Something is really not clear here: what exactly are you doing ?
Building an application of yours ?
Building that library standalone ?

[Izza]

Library for now

[SGaist]

In that case, you should rather contact the library authors to get help building their library.